Explosion-engine.



L. C. VANDERLIP.

EXPLOSION ENGINE. `APPucAT|oN man SERT. 4, m3,

1,251,847. Patented Jan. 1, 1918.

2 SHEETS-SHEET l.

L. C. VANDERLIP.

sxfggswn ENGINE.

APPLICATION FILED SEPT- 4| i913. j

' Patented Janfl, 1918.

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@Y wve' UNITED srrA'rEs ATENT ormoni..

Louis c. veNDERLm oF ELKHART, INDIANA.

EXPLOSION-ENGINE.

v To all whom t may concern:

Be it--known that I, LOUIS C. VANDERLIP,

a citizen of the United States, residing at Elkhart, in the county of Elkhart and State of Indiana, have invented certain new and useful Improvements in Explosion-Engines, of which the following is a specification.

The invention relates to an improvement i inv explosive engines of the two-cycle type,

and more particularly to the control of the admission and exhaust of the motive fluid through the medium of a reciprocating element encircling the'piston and operated by the main shaft. .l

The objects of m invention areas follows, rst, the pro uction of a two stroke cycle engine in which the fuel gases are ini- Atially inspired and compressed inthe cylin-I der top by an improved form of sleeve valve, or control element, second, the use of intercommunicating compression chambers to produce etiiciency in initially inspiring and compressing the fuel as, third, the production of an engine o the class described inwhich the fuel gas losses by leakage in the initial compression chamber are reduced to the minimum by the adoption of an improved form of sleeve'valve head, or pump, and fourth, the introduction of means on the sleeve valve wherebythe necessity for an additional valve yof any character is eliminated and the motor height Ais reduced to the minimum. Other objects of my invention will appear from time 'to time and be mentioned and described herein.

The invention in the preferred details of the construction will be described in the following' specification, reference being had )articularl'v to the accompanying drawings, 'in whieh:-

Figure 1 is a sectional View of an engine constructed in accordance with my inven- Ation, the view being shown in distinct halves, respectively representing the opposing strokes of thepiston.

Fig. 2 is an enlarged broken sectional view illustrating the base or lower portion of the engine, illustrating the operating means for the control element.

Fig. 3 is a section on line 3-3 of Fig. 5.

Fig. et is an enlarged broken sectional view, partly in elevation illustrating a control element in an extreme upper or gas admission position. v

Fig. 5 is a similar view with the control casin Specication of Letters Patent. l Patented J all. 1, 1918. Application med septemer 4, i913. serial No. 788,069.

element in an extreme lower or cylinder charge admittin position.

Fig. 6 is a bro en elevation 'of the control element. f 0 Referring particularly to the accompanylng drawings 1 represents the main casing, wlthin which, as is usual, is provided a concentric -annular wall 2, forming what will be hereinafter termed' the main cylinder. The space intermediate the cylinder and casing wall is formed by transverse partitions 3 to provide the usual water jacket 4 and the exhaust chamber 5, the cylinder communicating. with the latter by a series of ports 6. The casing wall is of greater length than thecylinder, and the upper end of said casing is closed by what may be termed the stationary piston 7, centrally formed to receive a spark plug 8 and having the usual water jacket space 9 interiorly thereof. The stationary piston has the lateral, head 10 closing the upper end of the formmg the'stationary piston proper which depends within the casing. The lower end of the depending portion 11 terminates some distanceabove the upperend of the cylinder 2, and has an external diameter .somewhat I less than the internal diameter of the cyling wall, which space, as 15 will be here# 4lnafter termed the. compression chamber.

The compression head 11 is formed with an annular recess 16 closed b v the outer wall 17 of the head. which wall has slidable engagement 4with the casing walh. and4 is packed at 18 to prevent leakage, the recess and a depending central portion ll 16` which will be hereinafter termed the.

charging chamber, opening to the interior of the control element through a series of ports 19. The annular wall 20 forms a partial vertical division of the compression chamber, in the inner portion of which the compression head 14 operates, 2nd in the outer portion of which the Ichargje is localized under compression, and frtm whence for the control element as will later appear.

The inlet chamber 23 is 'in communication, through a channel. 24, with the carbureter .y (not shown) and the communication between theinle'thamber and the compression, chamber is through a comparatively reduced port 2 5.

The control element 12 is provided on its outer wall 17, and in line with the port 25,' with what may b e termed acut-oll" extension 26, the same being in the form of a depending portion of said wall adapted to fully andl completely cover the port 25 in certain positions of said control element. The compression chamber between the depending portion 1l of the stationary piston 7 and the casing wall, within which the head 14 operates, is extended forward toward the cylinder 2 and beyond the top thereof and around the upper end thereof to accommodate the inward movement of the cut-oli' extension 26 and toreduce the compression on the compression movement of the head 14. Y

The sleeve section 13 of the control element, which as previouslyA stated. operates within the cylinder l is formed at an appropriate point in its length with a series of horizontally alined ports 27 designed to establish communication between the interior of the sleeve 13 and the exhaust port (S from the cylinder, the ports 27 being of less height longitudinally-of the cylinder than the ports 6.

A piston 2850i any usual or preferred type is mounted for reciprocation ,within the sleeve section 13 ol the control element, the piston being .packed at 2!) in the usual manner, and packing 30 being also interposed I between the sleeve section l?) of the control clement and the stationary piston said packing being-preferably arranged in an exthe control element l2 will be also at its upper limit of movement, it will be apparent that the cut-oil' extension 26 of the control clen'ient will be so elevated as to uncover the port 25 from the inlet chamber. The motive v Laatse? fluid may now enter the compression chamber 15, below the compression head of the control member it-beingunderstood thatthe upward movement of. .said head tends to create a partial vacuum in said compression chamber to draw ina charge immediately upon the uncovering of the port 25. As the r in the compression-chamber'is thus -ully com ressed until the ports 19 of compression hea `'of the control member register with the ports x21 from the compression chamber, at which time the gas of the compression chamber, under full compression, enters the chargingchamber 16, and thence to the interior of the sleeve-12 true cylinder. 1

By reason of the relative movements of the piston and control element the exhaust ports 27 register with the exhaust ports 6 of the'cylinder slightly before the charging and a rapid and effective exhaust secured.

As a result of the construction described it will be obvious that crank casecompresslon is eliminated; that the gases are initially.

which ia-iin effect the ports 19 and 2-1 are in registry, andfhence f the possibility of back pressure is'eliminated rect line or plane; and that the compression head control of the inlet port 25 eliminates the necessity of a valve of usual type for such control.

By extending the cut-ott' member-26 downward from the sleeve head 14 and extending the emnpression chamber 15 downward around the cylinder upper end, into which chamber' extension thel cut-oft' member 26 may be projected on its downward movement with the sleeve head 14, thelhcight of the engine as a whole is reduced to the minimum and the port 25 may be, and preferably is. located `in substantially the, same plane with ports 21, 2l, and substantially diametrically opposite, or in the saaie plane with, the lower face, or bottom end, of the stationary piston'll.

Il'aving thus described my invention, what lelaim is: f Y

1.. An explosion engine comprising a cyluuler. a casing `provided with intercommunicating compression chambers, a control element operative as a compression piston in one of said chambers-and provided with ports adapted to establish communication between said chambers and the cylinder at a predetermined point in -its travel, a piston, and means for relatively operating said piston and control element. A

2. An internal combustion engine comprising'a cylinder; a casing beyondvthe' cylinder forming a plurality of compressionchambers the partition wall whereof is provided with ports; a reciprocatory member mounted in the cylinder and provided with a he'ad which is itted'within one of said compression chambers and operative therein as a piston, said head having a chamber therein which is provided with ports adapted to register with said partition wall ports, said head chamber being provided also with ports adapted to place the head chamber and the explosion chamber in communication; a piston, and means for relatively operating saidreciprocatory member and said piston.

3, An internal combustion engine com-` prising a. cylinder; "a casing beyond the cylinder forming a plurality of compression chambers the partition wall whereof is provided with ports; a reciprocatory member mounted in the cylinder and provided with a head which is fitted within one 0f said compression chambers and operative therein as a piston, said head having a chamber therein which is provided with ports adapted to register with said partition wall ports', said head chamber being provided also with ports adapted to place the head chamber and the explosion chamber in communication; an inlet port in communication with one of said compression chambers; and means carried by the head of said reciprocatory member'for governing said inlet port.

4. In an internal combustion engine, the combination of a cylinderj a casing provided with intercommunicating compression chambers; an inlet portfor one of said chambers; a reciprocatory member having a head operative as a piston within' the inner of said compression chambers; means carried by said reciprocating member head for governing said compression chamber in- 6. An explosion engine comprising a cylinder, a casing provided with intercom-4 municating compression" chambers and an intake port in communication with one of said chambers, a control element provided with a head operative as a compression piston in one of'said chambers, and' outlet ports formed in said head adapted to establish communication between said chambers and the cylinder, a piston, and means for relatively n operating said piston and control element.

i 7. An kexplosion engine comprising a cyl-f ltrol element provided with a head to control said inlet port and operating as a" piston in the inner compression chamber, ports formed in said head and adapted to register with the outlet ports to establish communication betweenthe outer compression chamber and the cylinder, a piston, and means for relatively operating said piston and con- .I

trol element.

8. An explosion enginet comprising a cylinder, a casing partitioned to provide intereommunicating inner and outer compression chambers, the partition4 being formed with outlet ports, an intake member having an inlet port formed in said partition to provide communication between said member and the inner compression chamber, a control element operatively mounted within said cylinder provided with a head to control said inlet port' and operating as a pistonv in said inner chamber, ports formed in said head and adapted to ,register with said outlet ports toplestablish communication be-` tween the outer chamber andthe cylinder, a piston operating within the control element, and means for simultaneously and relatively'operating said piston and control element.

9. In an internal combustion engine, the combination of a cylinder: a casing provided vvith intercommunicating compression chambers, one of which has a ported wall; a reciprocating member having a head operative as a compression piston within the ported wall chamber, said head being provided with a charge receiving chamber .which is alternately in and out of registration with ithe port in said compression chamber wall and the explosion chamber;- a piston: andrneans for relatively operating said piston and reciprocating member.

10. In an internal combustion engine, the i combination of a cylinder and casing havingr bores of difleient diameters, the rlarger of said bores serving as a compression chamber; a reeiprocatory` member Within the smaller bore and carrying a head-operative as a compression piston within said compression chamber, said reciprocating mem-4 ber head having a charge receiving chamber therein adapted to establish communication between said compression chamber and the engine explosion chamber at substantially the end of van inward movement thereof and to be out of communication with said compression chamber during the major portion of both outward and inward move' ments thereof; a piston; and means'for relatively operating said piston and reciprocating member. v l l1. In an internal combustion engine, va cylinder; a casing provided With a coinression chamber, said compression chamiier being extended laterally, the Wall of said compression chamber bore having a port which is in communication with said compression chamber lateral extension; al

reciproeatory member` which is provided with a chambered head, said head being fitted within said compression chamberand operative therein as a piston, said head chamber being adaptedto register with said compression chamber Wall port for establishing communication between said compression chamber and its extension and the explosion chamber; a piston; and means for relatively operating said piston and reciprocatory member.

l2. In an internal combustion engine, a cylinder; a casing provided with a compresi sion chamber, said compression chamber be- '-ing extended laterally and downward around relatively operating said piston and recipthe upper end of the cylinder, thc wall of said compressa-m chamber boi-'chaving a poit which is in communication with said compression chamber and its lateral extension; a reciprocatory member which is provided with a chambcred head, said head be-' ing litted within said compression chamber and operative therein as a piston, said head y chamber being adapted to register with said compression chamber wall. port for establishing communication between said compression chamber and its extension and the explosion chamber; a piston; and means for rocatory member.

13. In an internal combustion engine, the combination of a cylinder; a casing provided with a plurality of intercommunicating compression chambers, one of said chambers being extended downward around and encompassing theouter periphery of the upper end of the `cylinder; a reciprocatory member arranged within the cylinder and. provided with a head operative as ily piston and fitted within one ot said coinpl'ession chambers: a piston; and means for relatively operating said piston and i'ei'iproratory member.

14. ln an internal combustion engine, the

-within one of said compression chambers and into said reciprocatory member, said stationary' piston terminating at its iower end intermediate the upper end ot the cyl iiider and the upper end of said casing; a

piston; and means for relatively operating said piston and reciprocatory member.

15. ln an internal combination engine, the combination ot' a cylinder and casing having bores of diti'erent diameters, the larger oii' said bores l'icing compression chamber, said compression chamber being extended downward around thc upper end of said cylinder; an inlet port in communication with said compression chamber; a reciprocatory member provided with a head which is ttcd within said compression chamber, said head carrying` a cut-olf member which alternately opens and closes said inlet port and is projected into said compression chamber extension on the downward iiiovement thereof; a piston; vand means for relatively operating said piston and reciprocatory member.

1G. In an internal combustion engine, a cylinder; a casing provided with a compression chamber, said compression chamber having an extension, vthe wall of said compression chamber bore having a port which is in communication with said' compression chamber and its extension; an inlet port in communication with said compression chamber; areeiprocatory member provided with a chambered head which is fitted within said compression chamber and` operative therein as a piston, said head chamber being adapted to register with said compression chamber wall port for establishing communication between said compression chamber extension and the explosion chamber; a eut-ott meinbcr carried bythe head of said reci]rocatory member which is adapted to alternately open and close said'inlet port.; a piston; and

fton; a reiiproratory member provided with a head whirb is litted within said compres;n sion chamber` .said head carrying a cut-oli member which alternately opens and rioreI said inlet port; a piston; and Hazan-'- Laatse? relatively'operating said piston and recipi p and spaced from the'wallsthereof.; an inlet port 'in communication vvwith said compression chamber and located vsubstantially in the same 'plane withfthe lower face vof said stationary piston; a reciprocatory member provided with a head which is fitted within said compressionchamber, said head carrying a cut-ofi' member which alternately opensl and closes said inlet port and is p rojected into said compression chamber eX- tension on the downward movement thereof; a piston; and means for relatively operating said piston and reciprocatory member.

19. In an internal combustion engine, thecombination of a cylinder; a casing provided with a plurality of intercommunicating compression chambers; va stationary piston projectin into the inner of said compression cham ers and spaced from the walls thereof; an inlet port in communication with one of said compression chambers and located substantially in the same yplane with the lower face of said. stationary piston; a reciprocatory member provided with a head which is fitted within one of said compres'- sion chambers, said` hea'd carrying a cut-0E member which alternately opens and closes said inlet port; a piston; and means for relatively operating said piston and reciprocatory member.v f

20.' In an internal combustion engine, thev combination of a cylinder; a casing proyided with a plurality of intercommunicating compression chambers; a stationary pist0n projecting into the inner of said compression chambers and spaced from the walls thereof; an inlet port in communication withV the inner of said compression cham- 'bers and located substantially in the same plane with the lower face of said stationary piston; a reciprocatory member provided with a head which is fitted within the inner of said compression chambers, said head carrying a cut-0E member which alternately opens and closes said inlet port; va piston; and means for relatively operating said piston' and reciprocatory member.

21. In an internal combustion engine, the combination of a cylinder and casing having bores of diiierent diameters, the larger bore being a compression chamber, said compression chamber being extended downward around the upper end of said cylinder; an inlet ortin communication with said compression chamber; a reciprocatory member provided with a head which is fitted within ing a i cut-o' member which alternately opens and closes said inlet port and is projbcted into said` compression 'chamber extension on'the downward movement thereof; al piston separate from said vreciprocatory member and separately actuated; and means for relatively operating said piston'. andlreciprocatory member.A 22. In an internalcombustion engine, the combination of a cylinder; a casingpro? vided witha plurality of intercommunicating compression chambers; an inlet portin communication with the inner of said compression chambers; a reciprocatory member provided With a headwhich'is fitted Within said inner compression chamber, said head carrying a cut-o" member which alternately opens and closes said inlet port; a piston; and means for relatively operating said piston and reciprocatorymember.

23. In an internal combustion engine, the combination of a cylinder and casing hav ing bores of different diameters, the larger of said bores being a compression chamber;

an inlet port in communication with saidcompression chamber at one side thereof; a reciprocatory member provided with' a headv which is iitted within said compression chamber, said head carrying a segmental cut-olf member which alternately opens and closes said inletport; a piston separate from said reciprocatory lmember and separately actuated; and means for relatively operating said piston and reciprocatory member.

24. In an internal combustion engine, the combination of a cylinder and casing having bores of diiferent diameters, the larger of said bores being a compression chamber; an inlet port in communication with said compression chamber; a reciprocatory member provided with a head which is fitted within said compression chamber, said head carrying an unported cut-oil member which alternately opens and closes said inlet port; a piston vlseparate from said reciprocatory member and separately actuated; and means for relatively operating said piston and reciprocatory member.

25. In an internal combustion engine, the

- combination of a cylinder and casing having bores ofdiiferent diameters, the larger of said bores being a compression chamber; an inlet port in communication with said compression chamber; a reciprocatory. member provided with a headwhich` is fitted within said compression chamber, said head carrying a cut-olf member extending downwardly therefrom and which alternately opens and closes said inlet port; a piston separate from said reciprocatory member and separately actuated; and means for relatively operating said piston and reciprocatory member.

26. In an internal combustion engine, the combination of, a cylinder and casing having bores of diiferent diameters, the larger ofv f combination of, a cylinder and casing havsaid bores being a compression chamber; an inlet port in -communication with said compression chamber at one side thereof; a reciprocatory member provided with a head whichis fitted Within said compression chamber, said head carrying a cut-olf member which alternately opens and closes said inlet port; apiston separate from said reciprocatory member;.and means for relatively operating said piston and reciprocatory member.

27. In an internal combustion engine, the

ing bores of different diameters, the larger of said bores serving as a compression chamber.; .a reciprocatory member carrying a head operativel as a compression piston Within said compression chamber, said head being provided With a fluid receiving chamber which is out of communicationwith said compression chamber during a portion of either stroke thereof; a piston; and means for relatively operating .said piston and rein presence of two Witnesses. LOUIS C. VANDERLIP. Witnesses:

L. W. Coon, GEORGE OL'rscH. 

